Topic       : The GFA-Basic Compendium
Author      : GFA Systemtechnik GmbH
Version     : GFABasic.HYP v2.98 (12/31/2023)
Subject     : Documentation/Programming
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Index Size  : 28056
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View Ref-FileFALSE
TRUE
PI

The logical constant FALSE returns the value 0.

The logical constant TRUE returns the value -1.

The constant PI returns the value of the transcendental number pi
(3.14159265359).

Example:

    PRINT FALSE
    IF TRUE
      PRINT PI
    ENDIF

--> Prints the numbers 0 and 3.14159265359 on the screen.

Memo: Be very careful porting source code from other languages.
      Often TRUE returns 1 in other languages.